Leadfoot Luke

Insides as in towards the middle of the truck or inside as in the center of the tire?

Year of truck: 2006 Make: Chevy Model: LT Black Crew Cab 4wd Engine: LQ9 Transmission: 4L70E Gearing: Stock 4.10 Air intake: Currently stock box, no filter Exhaust Manifolds: Stock Catback: Stock PCM tuning: Nelson Performance Torque converter: Stock Transmission mods: Corvette Servo Other mechanical modifcations: TR224-112 cam, SLP UD Pullies, 160 Thermostat Body mods: Stock